Coffee drinkers urinate more frequently than those who do not drink coffee or other caffeinated beverages. Which of the following is a reasonable hypothesis for the effect of caffeine on your body?

A) Caffeine inhibits the release of erythropoietin.
B) Caffeine stimulates the release of erythropoietin.
C) Caffeine stimulates the release of antidiuretic hormone ADH).
D) Caffeine inhibits the release of antidiuretic hormone ADH).